“The day after Jack arrived in London, there being nothing whatever to detain him in England, we set off together for St. Petersburg, and are now domiciled above his blacksmith shop.  We are not on the fashionable side of the river, but our street is wide, and a very short walk brings us to a bridge which, being crossed, allows us to wander among palaces if we are so disposed.  We have been here only four days, yet a good deal has already been accomplished.  The influence of the Prince has smoothed my path for me.  Yesterday I had an audience with a very important personage in the Foreign Office, and to-day I have seen an officer of high rank in the navy.  The Prince warns me to mention no names, because letters, even to a young lady, are sometimes opened before they reach the person to whom they are addressed.  These officials who have been kind enough to receive me are gentlemen so polished that I feel quite uncouth in their presence.  I am a little shaky in my French, and feared that my knowledge of that language might not carry me through, but both of these officials speak English much better than I do, and they seemed rather pleased I had voluntarily visited St. Petersburg to explain that no discourtesy was meant in the action I had so unfortunately taken on the Baltic, and they gave me their warmest assurances they would do what they could to ease the tension between our respective countries.  It seems that my business here will be finished much sooner than I expected, and then I am off on the quickest steamer for New York, in the hope of seeing Niagara Falls.  I have met with one disappointment, however.  Jack says he cannot possibly accompany me to the United States.  I have failed to arouse in him the faintest interest about the electric works at Niagara.  He insists that he is on the verge of a most important discovery, the nature of which he does not confide in me.  I think he is working too hard, for he is looking quite haggard and overdone, but that is always the way with him.  He throws himself heart and soul into any difficulty that confronts him, and works practically night and day until he has solved it.

“Yesterday he gave the whole street a fright.  I had just returned from the Foreign Office, and had gone upstairs to my room, when there occurred an explosion that shook the building from cellar to roof, and sent the windows of our blacksmith’s shop rattling into the street.  Jack had a most narrow escape, but is unhurt, although that fine beard of his was badly singed.  He has had it shaved off, and now sports merely a mustache, looking quite like a man from New York.  You wouldn’t recognize him if you met him on Broadway.  The carpenters and glaziers are at work to-day repairing the damage.  I told Jack that if this sort of thing kept on I’d be compelled to patronize another hotel, but he says it won’t happen again.  It seems he was trying to combine two substances by adding a third, and, as I understood him, the mixing took place with unexpected